PmcKcachegrind [FreeBSD WIKI]

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.

[[/PmcTools|PmcTools]] Kcachegrind support allow full inspection of pmc capture under Kcachegrind (kde4sdk).

Sample command:

pmcstat -Sinstructions -O/tmp/pmctest.bin ~/pmctest/prog/pmctest 1000

pmcstat -R/tmp/pmctest.bin -F/tmp/pmctest.cg

/usr/local/kde4/bin/kcachegrind /tmp/pmctest.cg

Tips:
  * you can add formula to the file or with the editor in kcachegrind
    * "event: Sum = INST_RETIRED.ANY0 + INST_RETIRED.ANY1" (Sum of 2 core)
  * call count is actually roughly estimated by detecting when two consecutive sample hit with a distance > 1

Sample output for graph view:

{{pmctools/pmckcachegrind/kcachegrind_pmctest_graphview.png}}

Sample output for source view (C+asm):

{{pmctools/pmckcachegrind/kcachegrind_pmctest_srcview.png}}

Sample output for full frame capture:

{{pmctools/pmckcachegrind/kcachegrind_fullframe.png}}